baber/WOPTO huggingface dataset:
Patent GB-519633-A (GB)
Title: Printing telegraph system
IPC: H04L1/00
Filed: 1938-09-24
Abstract: 519,633. Type-printing telegraphy. DUUREN, H. C. A. VAN. Sept. 24, 1938, No. 27913. Convention date, Sept. 25, 1937. Drawings to Specification. [Class 40 (iii)] In a printing telegraph system using code elements of different character, the ratio of the number of elements of each character representing each letter &c. is constant and the receiver is so arranged that upon receipt of a signal wherein the said ratio of elements is incorrect the printer is unaffected by the received signal and the receiver automatically sends to the transmitter signals to cause the retransmission of the signal which was received incorrectly. The invention is described as applied to an eight-unit code consisting of four positive and four negative impulses. For transmission the normal five-unit code is translated into the eight-unit code by the addition of one, two or three impulses of appropriate polarity. Those combinations of the five-unit code having five similar impulses are translated into combinations having the last three impulses of a characteristic form. At the receiver those combinations having the correct proportion of positive and negative impulses are passed to a printer, the last three impulses being suppressed except that in the two cases where it is necessary the combination is translated into the fiveunit code before passing to the printer. If a signal is received in which the elements are not in the correct ratio, relays operate to send a warning signal back to the transmitter. When the transmitter is tape operated such a warning signal causes the automatic stepping back of the tape so that the mutilated signal is retransmitted. Specification 419,526 is referred to.
Patent GB-861070-A (GB)
Title: High frequency tuner apparatus
IPC: H01J23/207
Filed: 1958-09-01
Abstract: 861,070. Tuning cavity resonators. VARIAN ASSOCIATES. Sept. 1, 1958 [Sept. 6, 1957], No. 28030/58. Class 40 (8). A tuning arrangement for the output cavity 2 of a klystron comprises a probe 5 frictionally held within a bearing surface 6 of the cavity 2 and a resilient threaded member 11. The probe 5 is in the form of a tube of resilient material, e.g. beryllium copper, and is deformed at its lower end into a square cross-section having flattened corners which bear against a phosphor bronze bush 6. At its upper end the probe is secured within a screw 7 by means of a cylindrical insert 8 which is expanded against the inside of the probe by a ball 9. The screw 7 is threaded into a resilient mounting sleeve 11 which is secured to the exterior of the cavity. The sleeve 11 is made from a thin walled tube, of e.g. nickel, which is deformed to the shape shown in Fig. 4 in such a manner that it exerts considerable pressure on the screw 7. Only those portions of the sleeve 11 which contact the screw need be threaded. The distance between the threaded portion of the sleeve 11 and the bush 6 is greater than the diameter of the screw 7. Specifications 810,327 and 861,069 are referred to.
Patent GB-228628-A (GB)
Title: Improvements relating to the removal of water from peat and the like
IPC: C10F5/04
Filed: 1923-11-07
Abstract: 228,628. Soderlund, O., and Boberg, T., Testrup, N., and Techno-Chemical Laboratories, Ltd. Nov. 7, 1923. Treatment to facilitate drying; draining and pressing.-A method of separating from peat &c. water comprising the naturally contained water of the peat and surplus water added to facilitate the removal of the same by pressure consists in the addition to the peat of a sufficiently large quantity of water to facilitate the primary separation of the peat fibres and associated colloids without the application of pressure, the fibre being subsequently pressed and dried by waste gases. As shown, the peat and additional water in the proportion of say, one part by weight of peat to 50 or 100 parts water are fed into a mixer C and allowed to pass through a perforated plate E in front of which are rotary knives D to a tank F. The mixture is forced by a pump G into a trough K having spouts for directing the mixture over a gauze screen M, the fibrous matter passing on to a conveyer which discharges it to the press, while the water and colloidal matter passes through the screen and is discharged through a pipe O. In a modification, the mixture is discharged from the tank to a trough R and is picked up and drained upon a perforate rotary cylinder S which coacts with a roller T by which the fibrous matter is discharged on to the press conveyer, the water being drained away from the ends of the cylinder. According to further modifications, the primary separation of the peat and colloidal matter may be done by settlement and decantation. Specifications 150,807 and 220,015, [Class 46, Filtering &c.], are referred to.
Patent GB-786122-A (GB)
Title: Method of making multi-axially stretched aircraft canopies and the like
IPC: B29C51/00
Filed: 1955-10-03
Abstract: 786,122. Moulding aircraft canopies &c. GOODYEAR AIRCRAFT CORPORATION. Oct. 3, 1955 [June 13, 1955], No. 28128/55. Class 87(2). The sheet 5 from which the canopy is to be made, which may be single or laminated and of transparent plastic material, e.g., methyl methacrylate, is laid on a plate 2, with a rubber gasket 4 interposed, and, having been rendered pliable by heat, is stretched. For this purpose one end of the sheet is held by fixed clamps 6 and the other by clamps 8 which are pulled by a cable 9 drawn by a power-operated winch 10. In one method the sides of the sheet are held against inward movement during the stretching by clamps 16, which are free to move in a longitudinal direction only, Fig. 3, each having rollers 17, 18 with a bar 14 between them. In another method the sides are allowed to move inwards while the sheet is being stretched longitudinally and the sheet is then held, e.g. by pins dropped through holes in the jaw 8 and corresponding holes in the plate 2, while both the sides are stretched outwards by cables pulling on jaws gripping the sides. While the sheet is stretched and before it has had time to set it is blown to the shape of a canopy in a jig. The jig comprises a bottom plate with shims superposed and secured to it by screws 33. Altering the number of shims controls the thickness of the jig and thus the lateral stretch of the sheet under the fluid pressure. The jig has a dumb-bell shaped opening, the circular ends of which may be varied in size by shim-like members 34, 35 in the openings. The larger the openings the flatter the canopy becomes. The jig also comprises inverted U-members 29 disposed to define the planes in which the canopy is mounted in the airplane and joined at the top by a member 30. The jig is quickly applied when the sheet has been stretched and clamped against the gasket 4 by quick-release clamps 25, and compressed air is then blown underneath the sheet through a conduit 3. The members 29, 30 serve as gauges to observe when the blowing is sufficient. The canopy is allowed to cool and set and is then removed from the jig.
Patent GB-395349-A (GB)
Title: Improvements in or relating to arc rectifiers
IPC: H02M1/04
Filed: 1931-10-09
Abstract: 395,349. Converting. SIEMENSSCHUCKERTWERKE AKT.-GES, Siemensstadt, Berlin. Oct. 9, 1931, No. 28144. Convention date, Dec. 17, 1930. [Class 38 (ii).] Relates to gridcontrolled vapour or gaseous discharge devices and consists in supplying the grids from a source of A.C. through electric discharge devices by means of which the sinusoidal alternating voltages is distorted so that it has a steep wave front. The grids 1 of a mercury arc rectifier are connected through resistances 2 to the negative terminal of a battery 3 and also through glow discharge devices 4 to the ends of the movable windings 4 of a phase shifting transformer 6 from which a centre tapping is taken to the positive terminal of the battery. The cathode of the rectifier is connected to an intermediate point of the battery. The grids are normally biased negatively but when the battery voltage and A.C. voltage in a particular grid circuit are additive and exceeding a certain value the device 4 breaks down and a current flows in the resistance 2 causing a positive potential to be suddenly applied to the grid. When the voltage drops below a certain value the discharge device becomes non-conductive. Transformer coupling may be used between the grid circuits and the circuits of the discharge devices. Specification. 314,962, [Class 38 (ii), Electric currents, Converting &c.], is referred to. The Specification as open to inspection under Sect. 91 comprised also the method of obtaining a peaky control potential by means of a saturated transformer. This subject-matter does not appear in the Specification as accepted..
Patent GB-691333-A (GB)
Title: Improvements in or relating to high-frequency band-pass filters
IPC: H03H7/01
Filed: 1950-11-17
Abstract: 691,333. Transformers and inductances. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 17, 1950 [Nov. 22, 1949], No. 28156/50. Class 38 (ii). [Also in Group XXII] A method of making a high frequency band-pass filter of the kind having two coils 7, 7 with their axes parallel and which are located in two compartments formed in a metallic screening can 1 by an electrically conductive partition 3 thereacross, is characterized in that after the manufacture of the screening can at least one hole, such as 21, whose depth measured in a direction parallel to the axis of the coils 7, 7 is less than the depth of the partition 3, is cut or punched in the partition 3. The screening can together with the partition is manufactured by an extrusion process, preferably cold extrusion. The greater the axial length of the hole 21 the greater is the coupling between the coils 7, 7 any desired coupling being obtainable with great accuracy by a suitable choice of the axial length of the hole. The hole 21 is desirably made at the same level as, or a little above, the coils 7, 7 so that the coupling therebetween is not varied when adjusting the inductance of the coils by movement of the magnetic cores 11.
Patent GB-890650-A (GB)
Title: Improvements relating to the manufacture of filter-tip cigarettes
Inventor: HORGAN GEORGE DANIEL
IPC: A24C5/47
Filed: 1957-09-10
Abstract: 890,650. Cigarette-making machines. AMF Ltd. Aug. 29, 1958 [Sept. 10, 1957], No. 28493/57. Class 130. Cigarette and mouthpiece assemblies 7, preferably consisting of a double length mouthpiece 27 between two cigarettes, carried on a conveying drum or cage to a connecting band applying drum 26 are rolled, during the application of the connecting band, by a rotary drum 24 situated eccentrically inside the drum or cage. The conveying cage comprises side plates 1, 2, carried by a hollow rotary shaft 10 and connected by pins 3 surrounded by loose rollers 5 between which the assemblies are positioned. The rolling drum 24 is carried by a crank 22 on a stationary shaft 16 and arranged eccentrically of the cage so that it only contacts the inner surface of the assemblies in the region of the connector band applying position 25, the drum 24 being rotated in the opposite direction to the cage by a gear-wheel 29 engaging an internal gear-wheel 33 on the cage. The assemblies are supported internally by stationary flanged rings 43, 44, carried by arms 38 and connected by rods 48 on which are positioned flat rings 45, 46 which support the mouthpiece 27, the rings 43, 44 being interrupted at the connector band applying position 25. An arcuate guide 35 also surrounds the cage between the stub inserting wheel 37 and the drum 26. After the connecting bands have been applied the united assemblies are carried past a heater 49 to dry the glue and transferred on to a grooved drum 50 for bisection by a rotary knife 51.
Patent GB-1455287-A (GB)
Title: Voltage induced optical waveguide means
IPC: G02F1/313
Filed: 1973-11-29
Abstract: 1455287 Controlling light RCA CORPORATION 29 Nov 1973 28614/76 Divided out of 1455286 Heading G2F The disclosure is identical to that of the Parent Application q.v., but the claims are directed to the impedance matching device of Fig. 4 (see the abridgment relating to the parent).
Patent GB-320748-A (GB)
Title: Improvements in and relating to sound reproducing instruments and the like
IPC: H04R7/12
Filed: 1928-10-05
Abstract: 320,748. Redpath, E. Oct. 5, 1928. Loud-speakers; magnetic instruments; diaphragms.-A loud-speaker comprises a paper, buckram, &c. cylindrical or substantially cylindrical diaphragm a adapted to be operated transversely to its axis so as to move as a whole by one or more actuating units b. A clip h connects the rod g of the actuating device to the flat edges a<1> of the diaphragm. The outer end of the diaphragm instead of being curved may have a sharp edge (Fig. 3, not shown) in which case the diaphragm may be formed in two halves. The diaphragm may be formed with peripheral or axial corrugations and, according to further modifications, may either have its ends curved inwardly so as to meet at a point which may be on the axis of the cylinder or the ends may be expanded or flared outwardly. The diaphragm may be employed to reproduce gramophone records mechanically. One or more supplementary diaphragms may be arranged internally or externally of the main diaphragm, the diaphragms being preferably of different sizes' so that each responds more readily to a certain band of frequencies and being driven either from the same or separate units.
Patent GB-205687-A (GB)
Title: Improvements in awls and other implemjents having the same type of handle
IPC: A43D5/08
Filed: 1922-10-21
Abstract: 205,687. Beddows, E. H., (trading as Nichols & Beddows, J.). Oct. 21, 1922. Self-grip tangs of special form; strengthened handles.-The tang of an awl for lacing footballs or other tool having a similar type of handle, is formed parallel or substantially so, and a part of it is flattened to a width greater than that of the tang. The lacing awl shown in Figs. 2 and 3 has a parallel tang E the part D of which is flattened so that its edges bite into the sides of the bore of the handle C when the tang is driven in. Fig. 4 shows the tang D, E, formed on a bradawl having the usual bolster G. A cap-like ferrule F, perforated for the shank A of the tool, may be applied to the handle so as to engage the flattened part D, Fig. 2, or the bolster G, Fig. 4.
Patent GB-1449116-A (GB)
Title: Reduction of certain 2,2-disubstituted azoxybenzenes and azo benzenes to corresponding hydrzobenzenes
Filed: 1975-07-08
Abstract: 1449116 Reductive preparation of 2,2<SP>1</SP>-disubstituted hydrazobenzenes LAKEWAY CHEMICALS Inc 8 July 1975 28650/75 Heading C2C The invention comprises a method for the preparation of 2,2<SP>1</SP>-dichlorohydrazobenzene, 2,2<SP>1 </SP>- dimethylhydrazobenzene or 2,2<SP>1 </SP>- dimethoxyhydrazobenzene by reduction of the correspondingly substituted azoxybenzene or azobenzene by treatment with finely divided iron and an aqueous organic or inorganic acid, optionally with the addition of a small amount of lead as an accelerator.
Patent GB-298243-A (GB)
IPC: H04R11/08
Filed: 1928-10-06
Abstract: 298,243. Loewe-Radio Ges. Oct. 7, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Gramophone pick-ups; magnetic instruments.- In gramophone pick-ups and like devices in which currents are induced in a coil by the vibration of an armature, the latter is arranged between two permanent magnets and is fixed to supports rigidly connected with the magnets. The armature 7 is pivoted on an axis 11, being clamped between rubber discs 17. The axis 11, and the part of the armature within the coil 21, are surrounded by rubber sleeves. The upper end of the armature is engaged by rubber rings 14 adjustable by nuts 16 so as to vary the damping. The U-shaped permanent magnets 5, 6 have tapered pole-pieces and are secured to the base plate 1 by screws passing through bridge-pieces, the magnets being separated from the base plate and bridging-pieces by leather, rubber, or other sound-damping material. The use of screws directly engaging the permanent magnets is avoided. The base-plate 1 has a cylindrical supporting nozzle 3 surrounded by a rubber ring 4 to prevent the transmission of extraneous mechanical vibrations to the sound box.
Patent GB-878503-A (GB)
Title: Improvements in or relating to weft-bobbin supply mechanisms for automatic weft-bobbin-changing devices of looms
IPC: D03D45/20
Filed: 1958-09-09
Abstract: 878,503. Hoppers for bobbins. FISCHER A.G., GEORG. Sept. 9, 1958 [Sept. 9, 1957], No. 28960/58. Class 78 (1). [Also in Group IX] In order to prevent bobbins from becoming jammed around the opening of an unpartitioned magazine 16, a freeing member 22 is raised by fluid pressure acting on a piston in a cylinder 24 every time a bobbin is to be changed, a nose 37 pushing back a bobbin 41b and allowing a bobbin 41a to drop into the troughed upper surface of the member. The weight of the bobbin depresses a rod 36 relative to the member 22, causing a latch 29 to engage a tooth of a rack 39, thus preventing further movement of the member 22. A control actuated by the bobbin changing apparatus then relieves the pressure in the cylinder 24 whereupon the member 22 is returned to its lowest position by springs 26, placing the bobbin 41a in the mouth of the shoot 20. The magazine 16 can be swivelled away from the shoot for loading with an open-sided container 15, whose open side is finally to lie along a line 50. When the magazine is in its loading position, a bar 12 is moved by a spring 14 into a position blocking the opening. When the magazine is in the position shown, an arm 18 contacts a fixed stop 19 to hold the bar 12 inactive.
Patent GB-254172-A (GB)
Title: Improvements in and relating to processes and machinery for rolling and folding or doubling dough
IPC: A21C3/10
Filed: 1925-11-17
Abstract: 254,172. Haan, I. de. Nov. 17, 1925. Rolling machines.-In a process for rolling and doubling dough, the dough is passed successively between pairs of rolls, the rolls of any pair having a smaller circumferential speed and a wider normal and also maximum gap than those of the preceding pair. The dough 2 in a hopper 1 is stirred and distributed by rotary stirrers 3, and passes downwardly between the rolls of pairs 6 - - 9, one roll of each pair being displaceable against the action of a spring to a limited extent controlled by a screw bolt 10. The rolls are all of the same diameter and the driving gear therefor is so dimensioned that for one revolution of the roll 9, the rolls 8 make two, the rolls 7 four and the rolls 6 eight revolutions respectively. The maximum gap between the rollers of a pair is in the inverse ratio to their speed. the gap between the rollers 6 being 1 mm., and that between the rollers 9 being 8 m.m. The rollers are placed with the gap between one pair at some lateral distance from that between the next pair so that the ribbon of dough automatically becomes doubled or folded. The dough ribbon after passing between the rolls 9 is fed by a table 20 to the feed rolls 21 of a cake cutting machine. The waste from the cutting machine is led by conveyors 22, 23 to a shoot 24 from which it is fed to the rolls 9 and mixed with the dough ribbon.
Patent GB-519905-A (GB)
Title: Improvements in or relating to radio receiving sets
IPC: H03J1/18
Filed: 1938-10-07
Abstract: 519,905. Wireless receiving-sets. KOLSTERBRANDES, Ltd., and BEATTY, W. A. Oct. 7, 1938, No. 29131. [Class 40 (v)] In a radio receiver having both manual tuning and motordriven tuning for pressbutton selection of certain fixed stations, the motor is also employed for manual tuning, under control of means operated conjointly or in association with the manual tuning knob to bring the tuning close to a desired point, from which the final adjustment is made by hand. In Fig. 1 the control knob is mounted on a shaft 1 which is moulded in a rubber cylinder 2 in which is also secured a shaft 3 carrying a friction clutch member 5. The latter slides on shaft 3 and is urged by spring 4 into engagement with a friction member 8 on the condenser shaft 9. Lateral displacement of shaft 1 by the tuning knob in the direction of arrows 10 or 15 closes switches 12 or 16 which control forward or reverse running of a driving motor coupled to the condenser shaft 9. In either case the solenoids 13, 14 are energized, coil 14 is repelled by 13 to disengage clutch 5, 8 through lever 17 thus uncoupling the tuning knob from the condenser shaft 9. Movement of coil 14 also closes contacts 20 which mute the loudspeaker during tuning. Fig. 5 shows a tuning knob 22 having oppositely mounted pairs of push-buttons 23, 24 mounted round its periphery. Depression of button 23 or 24 connects metallic discs 25, 26 and 28, 25, which discs are connected to the tuning motor circuit and solenoids 13, 14 over slip-rings 30, 31, 32. The action is the same as in Fig. 1. Closure of the motor control switches may also be effected by push-pull action of the tuning knob or by flexible mounting of controls concentric with or close to the tuning knob. Specification 469,077 is referred to.
Patent GB-847924-A (GB)
Title: Improvements in and relating to infra-red analysing apparatus
Inventor: SMART JOHN
IPC: G01N21/37
Filed: 1956-09-24
Abstract: 847,924. Infra-red gas analysers. GRUBB PARSONS & CO. Ltd., Sir H. Sept. 4, 1957 [Sept. 24, 1956], No. 29144/56. Class 40(3). In an infra-red gas analyser comprising a chamber 2 through which a gas sample is passed, a comparison chamber 1, and detection chambers P, R and associated diaphragm condenser 5, compensation for an unwanted gas having an overlapping absorption range is effected by a detection chamber Q which is connected to the chamber P in opposition to detection chamber R. A filter chamber 3 containing the unwanted gas B is provided before the sample chamber 2. Detection chambers P, Q, R contain the gas A to be detected. Adjustable shutters S1, S 3  are provided, and the analyser may be made of the null-balance type by including an automatically adjustable shutter S 2 . In a modification, the shutter S 3  is replaced by a chamber through which the gas sample is passed. In another modification, the various chambers are arranged. in line on opposite sides of a common radiation source as in Specification 827,540 with a shutter interrupting the two paths simultaneously or alternately. In another form, Fig. 5, detection chambers P, R are connected to a doublechamber condenser and the chamber Q forms a single-chamber condenser which is connected in series or parallel with the other condenser.
Patent GB-520133-A (GB)
Title: Improvements in or relating to collapsible tubes
IPC: B65D35/12
Filed: 1938-10-08
Abstract: 520,133. Collapsable tubes. GINZLER, F. G., CANDELIN, F. S., and UTILEX, Ltd. Oct. 8, 1938, No. 29187. [Class 66] A collapsable tube, the body portion of which is formed of a flexible organic material such as a cellulose derivative or synthetic resin, is provided with a screw-threaded neck formed with a flange 3 and a skirt portion 4 which is pressed over to grip the edge of the aperture in the body. The neck and cap may be of synthetic resin or other thermo-setting or thermo-plastic material or of metal. Specification 488,133 is referred to. Reference has been directed by the Comptroller to Specifications 9778/99, [Class 125], 474,251 and U.S.A. Specification 1,921,021.
Patent GB-600055-A (GB)
Title: Thermally controlled electric switches
IPC: H01H37/54
Filed: 1946-05-07
Abstract: 600,055. Temperature-responsive actuating-elements. TAYLOR, E. H. Nov. 5, 1945, Nos. 29281/45 and 13799/46. [Class 64(ii)] [Also in Group XXXVII] An operating member for an electric switch comprises a member 1 having a stable position on each side of an unstable position, and a bimetal member 3 so disposed that change of stress and/or shape therein due to temperature changes urges the switch contacts 6, 7, together initially thereby assisting the member 1 to move across its dead centre to open the contacts. The member 1 and bimetal 3 may be integral, as shown, or the bimetal may be fixed to the central limb of member 1. In assembling, the legs 2, 4 are clamped at A, in their normal plane and are urged together by pressure at B, so that the member takes up the stressed form shown.